Tree decisions

What should I do about tree roots in pipes?

Why a licensed plumber’s evidence should usually come before a tree-removal decision, and how to discuss the options without assuming the tree caused the original defect.

Leaf It To Me Tree ServicesPractical context from Josh Perryman’s hands-on experience
Updated 29 July 20268 min read

A blocked drain and a nearby tree do not automatically prove that removing the tree will solve the problem. The pipe may already have a crack, failed joint or other entry point. Roots can then exploit the moisture and space inside.

Sydney Water lists tree roots among common causes of wastewater blockages and recommends locating wastewater pipes when planning trees. For an existing blockage, the first useful evidence generally comes from a licensed plumber and, where appropriate, a camera inspection.

Confirm where the blockage is

The responsibility and repair path can depend on whether the affected section is private plumbing or Sydney Water infrastructure. If wastewater is backing up or overflowing, follow Sydney Water’s reporting guidance and obtain a licensed plumber’s assessment where it concerns private services.

Keep reports, footage and invoices. They help distinguish root intrusion from a collapsed, misaligned or otherwise defective pipe.

Ask what allowed the roots to enter

Fine feeder roots are attracted to moisture and can grow through gaps. Simply cutting roots from inside the pipe may restore flow temporarily without fixing the entry point. Pipe repair, relining, replacement or rerouting may be part of the long-term solution.

A plumber should advise on the pipe. Tree pruning or removal should not be sold as a plumbing repair.

When the tree still needs assessment

Once the pipe evidence is clear, Josh can inspect the tree, root area and access. If excavation or root cutting is proposed, consider how it may affect tree stability and health before work proceeds.

Council approval may be required for tree removal or significant root pruning. Some councils specifically prefer feasible pipe solutions to removal where the tree is otherwise healthy.

Avoid cutting structural roots yourself

Roots close to the trunk can contribute to anchorage. Their size, position and the amount removed matter. Unplanned cutting can destabilise a tree or create a new defect that is more serious than the original blockage.

Coordinate the plumber, property owner, relevant council and tree professional where the repair crosses responsibilities.

A sensible decision sequence

The clearest process is evidence first, then options. It avoids paying for tree removal only to discover that the pipe still needs repair and will remain vulnerable.

  • Make the area safe and address any wastewater overflow
  • Have a licensed plumber locate and inspect the affected pipe
  • Confirm private versus utility responsibility
  • Document the defect and recommended repair
  • Check council requirements before root or tree work
  • Ask Josh to assess any practical pruning or removal scope on site
Personal, on-site advice

When to call Josh

Call Josh when the decision depends on the actual tree, property or access, especially when:

  • A plumber has identified the affected pipe and root intrusion
  • You need the nearby tree and access inspected before deciding on removal
  • Planned pipe work may cut significant roots
  • You want to compare tree work with other practical solutions

Frequently asked questions

Will removing the tree stop roots in the pipe?

Not necessarily. The damaged pipe or entry point still requires assessment and repair. Removing a tree is not a substitute for plumbing work.

Can tree roots break a sound pipe?

Root and pipe interactions vary, but roots commonly exploit existing defects and joints. A plumber’s inspection is the appropriate way to establish what happened in the specific pipe.

Should I cut exposed roots near the pipe?

No. Root cutting can affect tree stability and may require approval. Obtain coordinated advice before excavation or cutting.

Official sources and further reading

Rules and emergency guidance can change. Check these authorities for the current position before acting.

General information, not a site assessment

Keep clear of damaged or unstable trees. Call Triple Zero for life-threatening emergencies and the relevant authority for powerlines, council approvals, plumbing or structural advice. Josh provides a free on-site quote for tree work within Leaf It To Me’s scope.

Need a hand with your trees?

Call Josh to discuss the job or arrange a free on-site quote.

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